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*Carduus tenuiflorus W. Curtis. Phen: Apr-May. Hab: On ballast, waif with collections from se. PA from 1877-1879 (Rhoads & Klein 1993) and from NJ (Kartesz 2020). Dist: Native of s. Europe.

Origin/Endemic status: Mediterranean Europe and Africa

Synonymy: = FNA19, K3, K4, NcTx; = n/a – C, F, Pa

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